code: def test_check_array_2():
      X = list([[1], [2], [3]])
      est = BlankModel(print_progress=0, random_seed=1)
  
      assert_raises(
          ValueError, "X must be a numpy array", est._check_arrays, X
      )
  
file_path: mlxtend/mlxtend/_base/tests/test_base_model.py
imports: import numpy
  from mlxtend._base import _BaseModel
  from mlxtend.utils import assert_raises
label_desc: Use image node_id 3 for calling a global function with example usage: test_check_array_2() without return types